***** About the entry of the occultation observations report sheet *****

This page mentioned attention about the entry of each column of the occultation observations report sheet.
The observation occultation sheet Downroad PDF toka.gif
columnsdetails
1-15Date and Time
Give the last two figures of the year and the number of the month. The date and time should be in Coordinated Universal Time(UTC) and NOT the Local Sandard Time. Note that the date my change when the time is transformed fromLST into UTC. The seconds and fraction should be given on the transformed from LST into UTC. The seconds and fraction should be made to correct the time to UT1 or UT2.
16
Enter the appropriate letter from the following:
S
SAO Star Catalogue
R
Zodical Catalogue by Robertson(ZC)
X
US Naval Obserbatory Ref. No.
F
FK5
A
AGK3
D
Durchmusterung (BD, CD)
H
H92
M
PPM
K
USNO
L
USNO
P
USNO
Q
USNO
G
Guide star
Other
(specify in the comments)
If the numbers for two or more catalogues are known, adopt as far as practicable an upper catalogue on the above list.
17-19Star Name (Delination Zone),Decl
Give the Declination zone for such catalogues as AGK3 or Durchmusterung.
17-23Star Name (Number),No
Give the number of the star in the catalogue or reference chosen in column 16, or in the declinatio zone given in columns 17-19.
In the latter case, write the number of four figures in columns 20-23. When using Durchmusterung, an attention is nesessary; Since the numbers of CD stars for lunar occlutations are always between 1000
24-28* Station
Enter the station code if known, otherwise leave blank.
29-30* Tel
Enter the telescope code if known, otherwise leave blank.
31-32* Obs
Enter the observer code if known, otherwise leave blank.
33-34* Rec
Enter the redorder code if known, otherwise leave blank. If the recorder is the same person as the observer, columns 33-34 msy be left blank.
The station, telescope and observer and /or recorder codes are allocated to the observers by ILOC. You will find the codes for you in the reduction of your observations sent to you from ILOC, or sometimes you will be informed of them before that.
Until then, leave columns 24-34 blank and enter he letters a,b,c,etc. assigned to the telescopes etc. in columns S1-S3 in order to connect each observation with the telescopes etc. Never write the letters a,b,c,etc. in columns 24-34.

Telescope code is for the position registered. Note thath if the telescope is moved a new code is assigned. In that case the station code also changes generally. Similarly, a different observer and/or recorder code is assigned to the same person if obsrvations are made at a new position.Therefore, leave columns 24-34 blank for observations at a new position and use columnsS1-S3 to specify the telescopes etc.
However, a shifting within several metres usually can be regarded as at the same position.
35Phenomenon,Ph
Enter the appropriate code number from the following phenomena:
1
Disappearance at Dark limb
2
Reappearance at Dark limb
3
Disappearance at Bright limb or Sunlit feature
4
Reappearance at Bright limb or Sunlit feature
5
Disappearance in the Umbra during Lunar Eclipse
6
Reappearance in the Umbla during Lunar Eclipse
7
Blink
8
Flash
9
Miss(No occultation)
and others
(specify in the comments)
 
 
"sunlit feature" in 3 and 4 means a sunlit peak etc. at the dark limb and close to a cusp. Disappearance and Reappearance should be considered as the end of disappearance and the start of reappearance, in a gradual case. It would be valuable to give the time of the start of disappearance or the end of reappearance, or the duration of the phenomenon, if known, in the comments. For 7 and 8, show wheter at the dark limb or at the bright limb in the comments.
36-37Method of Timing and Recording, MR
Choose one or a combination of two from the following and enter the appropriate letter(s): if you choose only one, leave column 36 or37 blank.
P
Photoelectric
K
Keytapping
S
Stopwatch
E
Eye and ear
X
Chronograph
T
Tape recorder
C
Camera and clock
V
Video camera and recording
and others
(specify in the comments)
38Method of Timekeeping, MT
Enter the appropriate letter from the following:
R
Radio signal(standard time signal)
C
Clock(adjusted by standard time signal)
M
Some medium(specify in the comments) related with standard time signal
T
Telephone
and ohters
(specify in the comments)
39Personal Equation(PE),A
Enter the appropriate letter from the following:
S
The following value of personal equation has been subtracted from the observed time.
U
The following value of personal equation is known, but unsubtracted yet.
E
Personal equation unknown but thought to have been eliminated in the method of timing therefore not given.
N
Not known.
40-41Personal Equation(PE), B
If S or U is entered in column 39, give the value of personal equation in seconds subtracted or to be subtracted from the observed time: The decimal point has been inserted for guidance.
In case the personal equation exceeds 1 seconds, give it in the comments.
42-44Accuracy, Accur
Give the accuracy of the reported time in second: the decimal point has been inserted for guidance. plus/minus Sign is not necessary. Estimate the accuracy of timing with reference to the following standard:
Very good
(0.1sec,0.2sec)
Good
(0.3sec,0.4sec)
Fair
(0.5sec to 0.7sec)
Poor
(0.8sec,0.9sec)
Very poor
(1.0sec more)
Note that the accuracy as whole is decided by the worst among those of timing, time-keeping, position etc. The accuracy as a whole should be given here, not the accuracy of timing only.
45Certainty, Ce
Enter the appropriate code number from the followin:
1
Sure of event
2
Possibly spurious
3
Most likely spurious
46-47Signal-to-noise Ratio, S/N
In case of photoelectric observation, give the signal-to-noise ratio: the decimal point has been inserted for guidance. Give the ratio S/N, S being the level change at the phenomenon read on the record paper, and N the amplitude of the noise with the star light lead onto the photomultiplier tube.
48Component of Double Star or Unidentified Star, X
Enter the appropriate letter from the following:
W
Preceding(west)component
E
Following(east)component
N
North component
S
South component
B
Brighter component
F
Fainter component
U
Unidentified star
Other
(specify in the comments)
For unidentified stars, it would be helpful in the reduction to give approximate values of the position angle or cusp angle and of the magnitude, if known, in the comments.
49Sky Condition(Stability of Star Image), St
Enter the appropriate number from the following:
1
Good
2
Fair
3
Poor
50Sky Condition(Transparency), Tr
Enter the appropriate code number from the following:
1
Good
2
Fair
3
Poor
51Remarkable Circumstances, C
Enterthe appropriate code number from the following if any:
1
Not instantaneous, gradual
2
Dark limb visible
3
By averted vision
4
Star faint
5
Through thin cloud
6
Many clouds
7
Strong wind
8
In strong twilight
If there are more than one, enter the most important one.
52-53Temperature, Temp
Give the temperature in degrees centigrade, if known. As only two columns are provided, give it in the comments for below -10 degrees.
54-55For the use at ILOC. Leave blank.
73Grazing Occultation, G
For recording a sereies of phenomena of a grazing occultation at one place, use consecutive lines of form(s) recording them in sequence of time, and enter a code number 6 in this column for each timing. With a grazing occultation, besides the timing of phenomena, the following circumstance are recommended to be reported:
7
Failed in observing event(s) from some cause
8
Started or resumed observing
9
Stopped observing temporarily or finally
To record these, enter the approriate code number in column 73 and the corresponding time in columns 1-15 and leave column35(Phenomenon) blank. Record time-sequentially mixing the phenomena and these circumstances toghter.
74-78For the use at ILOC. Leave blank.
S1T
If the code number for the telescopes is unknown, enter the appropriatate letter(a,b,c) from the upper part of the same side of the form and nothing should be written in coumns 29-30.
If the code number has been entered in columns 29-30, this column may be laft blank.
S2O
If the code number for the observer is unknown, enter the appropriate letter(a,b,c,etc.) from the upper part of the other side of the form and nothing should be written in columns 31-32.
If the code number has entered in columns 31-32, this column may be left blank.
S3R
If the code number for the recorder is unknown, enter the appropriate letter(a,b,c,etc.) from the upper part of the other side of the form and nothing should be written in columns 33-34.
If the code number has entered in columns 33-34, this column may be left blank.
It is only necessary to fill columns S1-S3 once in the first line if they are the same for all observations on the form.
Also, if the observer and the recorder are the same person, S3 need not necessarily be filled.
Commnts Specification(s) of "Other(s)" Chosen above or any information should be written.
56-72For the use at ILOC. Leave blank.
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